Subject to subsection (2), a person who has ceased to be a British citizen as a result of a declaration of renunciation shall be entitled, on an application for his registration as a British citizen, to be registered as such a citizen if—
he is of full capacity; and
his renunciation of British citizenship was necessary to enable him to retain or acquire some other citizenship or nationality.
A person shall not be entitled to registration under subsection (1) on more than one occasion.
If a person of full capacity who has ceased to be a British citizen as a result of a declaration of renunciation (for whatever reason made) makes an application for his registration as such a citizen, the Secretary of State may, if he thinks fit, cause him to be registered as such a citizen.
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